I have used acetone to spot clean planes I used Klass Kote on, both color and clear without the KK getting pulled off.
As a kid growing up in Washington State most people had what we called sun lamps. I'm not sure but I think those were UV lights?? May still be able to get them if they are and could be a cheaper way to go???
Klass Kote clear can be sprayed over most any paint you use. Two part epoxy and bullet proof. My only problem with it is paying for it but a little will go a long way!!